This is in English and down on this page there is link to buy tickets: http://www.ticketpro.hu/events.php?event=206
The fact is, that if you click to Order tickets link, it opens new window with this message:
"Dear Costumers, please note thet our webshop is currently out of order.
Please send you order to firstname.lastname@example.org
Thank you for your understnading!"
Maybe it's worth to try to use that e-mail above.
But now it's time to be gone - forever...